Fig. 1.

Mean CR and BV for all spheres with diameters of 10 mm (A), 13 mm (B), 17 mm (C), 22 mm (D), 28 mm (E), 37 mm (F). These were shown for OSEM + TOF (3 iterations, 28 subsets, 4.0-mm filter), Q.Clear (β = 100, 200, 300, 400, 500, 800, 1100 and 1400, as labeled on the points). Values are presented as means with SDs